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> My latest product idea, for Shift Linkage adjustment
Mblizzard
post Oct 2 2014, 04:55 PM
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Once again, Chris is going to get more of my money. Love this concept after struggling with adjusting mine for so long.
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Java2570
post Oct 2 2014, 05:09 PM
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QUOTE(Mblizzard @ Oct 2 2014, 06:55 PM) *

Once again, Chris is going to get more of my money. Love this concept after struggling with adjusting mine for so long.


Damn, you're right about that! I've already been thinking about those cool pushrod tubes!
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ChrisFoley
post Oct 3 2014, 01:42 PM
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The first thing I tried didn't work well enough (too delicate) so after a little searching on the internet I found some components which I think can be readily adapted to my concept.
Here's an updated model showing the worm and gear pieces in the assembly.
Support for the worm hasn't been modeled yet.
I intend for the gear to be a light press on the splined shaft so it will act as a fore-aft locator, yet not rotate independently of the shaft - that is if I can successfully broach the id of the acetal gear with a piece of the splined shaft.

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Mblizzard
post Oct 3 2014, 04:53 PM
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So ready for this item!
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SKL1
post Oct 3 2014, 06:38 PM
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add me to the "list"... had that same issue adjusting the rennshift on both my '14's...
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Dr Evil
post Oct 4 2014, 12:26 PM
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QUOTE(Racer Chris @ Oct 3 2014, 03:42 PM) *

The first thing I tried didn't work well enough (too delicate) so after a little searching on the internet I found some components which I think can be readily adapted to my concept.
Here's an updated model showing the worm and gear pieces in the assembly.
Support for the worm hasn't been modeled yet.
I intend for the gear to be a light press on the splined shaft so it will act as a fore-aft locator, yet not rotate independently of the shaft - that is if I can successfully broach the id of the acetal gear with a piece of the splined shaft.

Attached Image

I was having trouble envisioning this until this pic. Super cool. Cant wait to see your functioning part (IMG:style_emoticons/default/thumb3d.gif)
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mepstein
post Oct 4 2014, 12:36 PM
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I get it now. So this would compliment all the other upgraded parts by allowing you to precisely adjust the linkage. Nice!
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Harpo
post Oct 4 2014, 02:01 PM
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Very nice Chris. Sign me up

David
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swood
post Oct 4 2014, 03:00 PM
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Def interested
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Krieger
post Oct 4 2014, 10:36 PM
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I have always hated adjusting my shift linkage. This would make it really nice! Good work Chris!
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ChrisFoley
post Oct 17 2014, 02:12 PM
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First working prototype is ready for trial installation.

The nylon worm has a 3/16" allen socket molded into the top.

Attached Image

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Hank914
post Oct 17 2014, 02:16 PM
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QUOTE(Racer Chris @ Oct 17 2014, 01:12 PM) *

First working prototype is ready for trial installation.

The nylon worm has a 3/16" allen socket molded into the top.


I like this! I just upgraded to side shift, and this is exactly what's needed.

Put me down if the list has started.
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rjames
post Oct 17 2014, 02:21 PM
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QUOTE
There should be a way to maintain alignment of the tunnel rod with the fork under the shift lever, and make precisely controlled rotation adjustments in a minute or less.


Couldn't agree more. Thanks for working on this!!

And I get the general concept of the design, but is the adjustment (in your prototype at least) made with the allen bolt? And if yes, what keeps the shift rod locked into position once the adjustment is made?
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Java2570
post Oct 17 2014, 02:24 PM
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That's pretty slick....definitely interested in one of those!
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race914
post Oct 17 2014, 03:13 PM
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I feel another 914 shirt coming




EDISON

TESLA

FOLEY
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Mike1981
post Oct 17 2014, 05:34 PM
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Looks great

Im in for one !

Mike
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Dave_Darling
post Oct 17 2014, 09:04 PM
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QUOTE(rjames @ Oct 17 2014, 01:21 PM) *
And if yes, what keeps the shift rod locked into position once the adjustment is made?


Looks like the bolt vertically through the coupler squeezes the coupler tight against the rod, just like stock piece. So that's what holds the adjustment, and the worm gear can provide fine adjustment after the pinch bolt is loosened.

--DD
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ChrisFoley
post Oct 18 2014, 10:20 AM
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QUOTE(race914 @ Oct 17 2014, 04:13 PM) *

I feel another 914 shirt coming




EDISON

TESLA

FOLEY



I'll take 3.
2 - XL, 1 - LG please
(IMG:style_emoticons/default/happy11.gif)
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ChrisFoley
post Oct 18 2014, 10:24 AM
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QUOTE(Dave_Darling @ Oct 17 2014, 10:04 PM) *

Looks like the bolt vertically through the coupler squeezes the coupler tight against the rod, just like stock piece. So that's what holds the adjustment, and the worm gear can provide fine adjustment after the pinch bolt is loosened.

--DD

Exactly.
As soon as I install the prototype I'll take pictures to show more clearly how it works.
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maf914
post Oct 18 2014, 12:30 PM
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I am probably missing something, but why are two pairs of holes provided at the base of the shift lever attachment. A bolt is shown in the lower pair of holes. Is this a short shift option? (IMG:style_emoticons/default/idea.gif)

Looks great Chris.
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